¥What is the radiative temperature of an incandescent bulb whose
wavelength of maximum emission is near
1.0 mm
?
¥Apply WienÕs Law:
¥lMAX= (0.29«104 mm K) « T-1
¥Temperature of glowing tungsten filament
¥T= (0.29«104 mm K)«(lMAX)-1
¥T= (0.29«104 mm K)«(1.0 mm)-1 @ 2900K